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Punia P, Singh L. Evaluation of free and immobilized cellulase on chitosan-modified magnetic nanoparticles for saccharification of sorghum residue. Bioprocess Biosyst Eng 2024; 47:737-751. [PMID: 38607415 DOI: 10.1007/s00449-024-03010-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 03/27/2024] [Indexed: 04/13/2024]
Abstract
Enzymatic hydrolysis plays a pivotal role in transforming lignocellulosic biomass. Addressing alternate techniques to optimize the utilization of cellulolytic enzymes is one strategy to improve its efficiency and lower process costs. Cellulases are highly specific and environmentally benign biocatalysts that break down intricate polysaccharides into simple forms of sugars. In contrast to the most difficult and time-consuming enzyme immobilization processes, in this research, we studied simple, mild, and successful techniques for immobilization of pure cellulase on magnetic nanocomposites using glutaraldehyde as a linker and used in the application of sorghum residue biomass. Fe3O4 nanoparticles were coated with chitosan from the co-precipitation method, which served as an enzyme carrier. The nanoparticles were observed under XRD, Zeta Potential, FESEM, VSM, and FTIR. The size morphology results presented that the Cs@Fe3O4 have 42.2 nm, while bare nanoparticles (Fe3O4) have 31.2 nm in size. The pure cellulase reaches to 98.07% of loading efficiency and 71.67% of recovery activity at optimal conditions. Moreover, immobilized enzyme's pH stability, thermostability, and temperature tolerance were investigated at suitable conditions. The kinetic parameters of free and immobilized enzyme were estimated as Vmax; 29 ± 1.51 and 27.03 ± 2.02 µmol min-1 mg-1, Km; 4.7 ± 0.49 mM and 2.569 ± 0.522 mM and Kcat; 0.13 s-1, and 0.89 s-1. Sorghum residue was subjected to 2% NaOH pre-treatment at 50 ℃. Pre-treated biomass contains cellulose of 64.8%, used as a raw material to evaluate the efficiency of reducing sugar during hydrolysis and saccharification of free and immobilized cellulase, which found maximum concentration of glucose 5.42 g/L and 5.12 g/L on 72 h. Thus, our study verifies the use of immobilized pure cellulase to successfully hydrolyze raw material, which is a significant advancement in lignocellulosic biorefineries and the reusability of enzymes.
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Affiliation(s)
- Pallavi Punia
- Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India
| | - Lakhvinder Singh
- Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India.
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2
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Zaman U, Rehman KU, Khan SU, Refat MS, Badshah S, Hajira B, Iqbal A, Khan WU, Alsuhaibani AM. Identification, kinetics and thermodynamic analysis of novel β-galactosidase from Convolvulus arvensis seeds: An efficient agent for delactosed milk activity. Int J Biol Macromol 2022; 220:1545-55. [PMID: 36113598 DOI: 10.1016/j.ijbiomac.2022.09.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/06/2022] [Accepted: 09/12/2022] [Indexed: 11/21/2022]
Abstract
The β-galactosidase was extracted and purified from 100 g of C. arvensis seeds using a variety of protein purification procedures such as ammonium sulphate fractionation, gel filtration, and finally chromatography on a cationic ion exchanger. The effects of metal ions, kinetics parameters, and glycoprotein nature were determined, as well as the optimal pH and temperature of the purified enzyme. With a high specific activity (72 units/mg), β-galactosidase was isolated to a 24-fold apparent electrophoretic homogeneity. The molecular mass of β-galactosidase was determined as monomeric, which was further confirmed by SDS-PAGE and MALDI-TOF/MS analysis, with a 45 kDa molecular weight. The enzyme has a Km of 0.33 mM and a Vmax of 42 μmol/min Lactose in milk was reduced by 38.5 and 70 % after 4 h of incubation with β-galactosidase from C. arvensis. The β-galactosidase thermal inactivation kinetic parameters ΔH°, ΔS°, and ΔG° were calculated, indicating that the enzyme undergoes significant unfolding events during denaturation. Using β-galactosidase from C. arvensis seeds, lactose hydrolysis in milk up to approx. 50 % was observed. The findings indicate the potential use of C. arvensis seeds for the production of low/delactosed milk for lactose-intolerant population.
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Huang H, Shao S, Wang G, Ye P, Su B, Zhang C. Terahertz spectral properties of glucose and two disaccharides in solid and liquid states. iScience 2022; 25:104102. [PMID: 35378853 PMCID: PMC8976135 DOI: 10.1016/j.isci.2022.104102] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 02/28/2022] [Accepted: 03/14/2022] [Indexed: 11/29/2022] Open
Abstract
The vibrational and rotational frequencies of most biological macromolecules fall within the terahertz (THz) band; therefore, the THz wave has a strong ability to distinguish substances. Saccharides are important organic substances and the main source of life-sustaining activities. In this study, the spectral characteristics of D-glucose, α-lactose hydrate, and β-maltose hydrate were measured in the solid state through THz time-domain spectroscopy in the frequency range of 0.1–2.5 THz. The crystal configurations of these three saccharides were then simulated using solid-state density functional theory, and the experimental results were found to be in good agreement with the simulation results. Furthermore, the spectral characteristics of the three saccharides in solutions were measured. Each saccharide was found to have unique spectral characteristics, and a correlation existed between the THz absorption spectra of the same substance in the solid state and aqueous solution. Solid D-glucose, α-lactose hydrate, and β-maltose hydrate have unique absorption peaks The simulated results of the three saccharides are consistent with the experimental ones The THz spectra of the three saccharides in solid and aqueous solutions are correlated
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Affiliation(s)
- Haiyun Huang
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China.,Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China.,Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China.,Department of Physics, Capital Normal University, Beijing 100048, China
| | - Siyu Shao
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China.,Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China.,Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China.,Department of Physics, Capital Normal University, Beijing 100048, China
| | - Guoyang Wang
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China.,Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China.,Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China.,Department of Physics, Capital Normal University, Beijing 100048, China
| | - Ping Ye
- Department of Physics, Capital Normal University, Beijing 100048, China
| | - Bo Su
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China.,Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China.,Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China.,Department of Physics, Capital Normal University, Beijing 100048, China
| | - Cunlin Zhang
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China.,Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China.,Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China.,Department of Physics, Capital Normal University, Beijing 100048, China
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4
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Flores SS, Clop PD, Barra JL, Argaraña CE, Perillo MA, Nolan V, Sánchez JM. His-tag β-galactosidase supramolecular performance. Biophys Chem 2021; 281:106739. [PMID: 34923392 DOI: 10.1016/j.bpc.2021.106739] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 12/05/2021] [Accepted: 12/05/2021] [Indexed: 11/02/2022]
Abstract
β-Galactosidase is an important biotechnological enzyme used in the dairy industry, pharmacology and in molecular biology. In our laboratory we have overexpressed a recombinant β-galactosidase in Escherichia coli (E. coli). This enzyme differs from its native version (β-GalWT) in that 6 histidine residues have been added to the carboxyl terminus in the primary sequence (β-GalHis), which allows its purification by immobilized metal affinity chromatography (IMAC). In this work we compared the functionality and structure of both proteins and evaluated their catalytic behavior on the kinetics of lactose hydrolysis. We observed a significant reduction in the enzymatic activity of β-GalHis with respect to β-GalWT. Although, both enzymes showed a similar catalytic profile as a function of temperature, β-GalHis presented a higher resistance to the thermal inactivation compared to β-GalWT. At room temperature, β-GalHis showed a fluorescence spectrum compatible with a partially unstructured protein, however, it exhibited a lower tendency to the thermal-induced unfolding with respect to β-GalWT. The distinctively supramolecular arranges of the proteins would explain the effect of the presence of His-tag on the enzymatic activity and thermal stability.
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Affiliation(s)
- Sandra S Flores
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Av. Vélez Sarsfield 1611, 5016 Córdoba, Argentina; CONICET, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Córdoba, Argentina
| | - Pedro D Clop
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Av. Vélez Sarsfield 1611, 5016 Córdoba, Argentina; CONICET, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Córdoba, Argentina
| | - José L Barra
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Biológica "Ranwel Caputto", Av. Haya de la Torre s/N° Ciudad Universitaria CP, X5000HUA Córdoba, Argentina; CONICET, Centro de Investigaciones en Química Biológicas de Córdoba (CIQUIBIC), Córdoba, Argentina
| | - Carlos E Argaraña
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Biológica "Ranwel Caputto", Av. Haya de la Torre s/N° Ciudad Universitaria CP, X5000HUA Córdoba, Argentina; CONICET, Centro de Investigaciones en Química Biológicas de Córdoba (CIQUIBIC), Córdoba, Argentina
| | - María A Perillo
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Av. Vélez Sarsfield 1611, 5016 Córdoba, Argentina; CONICET, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Córdoba, Argentina
| | - Verónica Nolan
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Av. Vélez Sarsfield 1611, 5016 Córdoba, Argentina; CONICET, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Córdoba, Argentina.
| | - Julieta M Sánchez
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Av. Vélez Sarsfield 1611, 5016 Córdoba, Argentina; CONICET, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Córdoba, Argentina.
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Mirsalami SM, Alihosseini A. Selection of the most effective kinetic model of lactase hydrolysis by immobilized Aspergillus niger and free β-galactosidase. Journal of Saudi Chemical Society 2021. [DOI: 10.1016/j.jscs.2021.101395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Velazco S, Kambo D, Yu K, Saha A, Beckman E, Mysore N, Cauwenberghs G. Modeling Gene Expression: Lac operon. Annu Int Conf IEEE Eng Med Biol Soc 2021; 2021:1086-1091. [PMID: 34891476 DOI: 10.1109/embc46164.2021.9630940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Gene regulation is an essential process for cell development, having a profound effect in dictating cell functions. Bacterial genes are often regulated through inducible systems like the Lac operon which plays an important role in cell metabolism. An accurate model of its regulation can reveal the dynamics of gene expression. In this paper, a mathematical model of this system is constructed by focusing on regulation by the Lac repressor. The results show, as expected, that the concentration of lactose approaches zero while glucose concentration approaches the initial concentration of lactose by the action of β-galactosidase, expressed by the Lac operon. Addition of PD control improves stability of the system, with the phase margin increasing from 45° to 90°. Modeling the dynamics of gene expression in inducible operons like Lac operon can be essential for its applications in the production of recombinant proteins and its potential usage in gene therapy.
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Li L, Wang M, Chen J, Xu Z, Wang S, Xia X, Liu D, Wang S, Xie C, Wu J, Li J, Zhang J, Wang M, Zhu J, Ling C, Xu S. Preventive Effects of Bacillus licheniformis on Heat Stroke in Rats by Sustaining Intestinal Barrier Function and Modulating Gut Microbiota. Front Microbiol 2021; 12:630841. [PMID: 33889138 PMCID: PMC8055866 DOI: 10.3389/fmicb.2021.630841] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 02/22/2021] [Indexed: 12/18/2022] Open
Abstract
Heat stroke (HS) models in rats are associated with severe intestinal injury, which is often considered as the key event at the onset of HS. Probiotics can regulate the gut microbiota by inhibiting the colonization of harmful bacteria and promoting the proliferation of beneficial bacteria. Here, we investigated the preventive effects of a probiotic Bacillus licheniformis strain (BL, CMCC 63516) on HS rats as well as its effects on intestinal barrier function and gut microbiota. All rats were randomly divided into four groups: control (Con) + PBS (pre-administration with 1 ml PBS twice a day for 7 days, without HS induction), Con + BL group (pre-administration with 1 ml 1 × 108 CFU/ml BL twice a day for 7 days, without HS induction), HS + PBS (PBS, with HS induction), and HS + BL (BL, with HS induction). Before the study, the BL strain was identified by genomic DNA analysis. Experimental HS was induced by placing rats in a hot and humid chamber for 60 min until meeting the diagnostic criterion of HS onset. Body weight, core body temperature, survival rate, biochemical markers, inflammatory cytokines, and histopathology were investigated to evaluate the preventive effects of BL on HS. D-Lactate, I-FABP, endotoxin, and tight-junction proteins were investigated, and the fluorescein isothiocyanate-dextran (FD-4) test administered, to assess the degree of intestinal injury and integrity. Gut microbiota of rats in each group were analyzed by 16S rRNA sequencing. The results showed that pre-administration with BL significantly attenuated hyperthermia, reduced HS-induced death, alleviated multiple-organ injury, and decreased the levels of serum inflammatory cytokines. Furthermore, BL sustained the intestinal barrier integrity of HS rats by alleviating intestinal injury and improving tight junctions. We also found that BL significantly increased the ratios of two probiotic bacteria, Lactobacillus and Lactococcus. In addition, Romboutsia, a candidate biomarker for HS diagnosis, was unexpectedly detected. In summary, BL pre-administration for 7 days has preventative effects on HS that may be mediated by sustaining intestinal barrier function and modulating gut microbiota.
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Affiliation(s)
- Lei Li
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Man Wang
- School of Traditional Chinese Medicine, Naval Medical University, Shanghai, China
| | - Jikuai Chen
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Zhuoran Xu
- First Clinical Medical College, Southern Medical University, Guangzhou, China
| | - Shaokang Wang
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xinyu Xia
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Dong Liu
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Sheng Wang
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Chaoyu Xie
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jianghong Wu
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jinfeng Li
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Jiqianzhu Zhang
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Meitang Wang
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jiangbo Zhu
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Changquan Ling
- School of Traditional Chinese Medicine, Naval Medical University, Shanghai, China
| | - Shuogui Xu
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai, China
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Maity M, Bhattacharyya A, Bhowal J. Production and immobilization of β-galactosidase isolated from Enterobacter aerogenes KCTC2190 by entrapment method using agar-agar organic matrix. Appl Biochem Biotechnol 2021; 193:2198-224. [PMID: 33686627 DOI: 10.1007/s12010-021-03534-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/26/2021] [Indexed: 10/22/2022]
Abstract
In the present study, Enterobacter aerogenes KCTC2190 was isolated from soil around a cattle shed area, which was capable of producing intracellular β-galactosidase. Partially purified β-galactosidase was immobilized by entrapment method in agar-agar gel matrix. Agar-agar entrapped beads were prepared by dropping the enzyme-agar solution to ice-cooled toluene-chloroform ((3:1 (v/v)). 45.88±0.11% activity of partially purified β-galactosidase was retained after immobilization (bead shape). Maximum immobilization yield was observed in the presence of 2.5% agar-agar concentration. After immobilization, optimum temperature required for the enzyme-substrate reaction was shifted from 50 to 60 °C and the optimum reaction time was shifted from 15 to 25 min. The optimum pH for both free and immobilized β-galactosidase was pH 7. Free enzyme showed lower activation energy in comparison with the immobilized one. For free as well as immobilized β-galactosidase thermal deactivation, rate constant (kd) increased with increasing temperature while the values of decimal reduction time (D-values) and half-lives (t1/2) decreased. Immobilization process increased the t1/2 and D-values of β-galactosidase while it decreased the kd. Thermostability of immobilized β-galactosidase was higher as they showed higher enthalpy (ΔΗ0) and Gibb's free energy (ΔG0)value than those of the free β-galactosidase. The negative entropy (ΔS0) of free and immobilized β-galactosidase established that both were in a more ordered state within the temperature range (50 to 70 °C) studied. Immobilized β-galactosidase was able to retain 51.65±1.61% of its initial activity after 7 batches of enzyme-substrate reaction. Immobilized β-galactosidase showed 78.09±3.69% of its initial activity even after 40 days of storage at 4 °C.
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Vidya B, Palaniswamy M, Angayarkanni J, Ayub Nawaz K, Thandeeswaran M, Krishna Chaithanya K, Tekluu B, Muthusamy K, Gopalakrishnan V. Purification and characterization of β-galactosidase from newly isolated Aspergillus terreus (KUBCF1306) and evaluating its efficacy on breast cancer cell line (MCF-7). Bioorg Chem 2020; 94:103442. [DOI: 10.1016/j.bioorg.2019.103442] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 11/04/2019] [Accepted: 11/13/2019] [Indexed: 11/19/2022]
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Flores SS, Nolan V, Perillo MA, Sánchez JM. Superactive β-galactosidase inclusion bodies. Colloids Surf B Biointerfaces 2018; 173:769-775. [PMID: 30384274 DOI: 10.1016/j.colsurfb.2018.10.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/23/2018] [Accepted: 10/17/2018] [Indexed: 12/14/2022]
Abstract
Bacterial inclusion bodies (IBs) were historically considered one of the major obstacles in protein production through recombinant DNA techniques and conceived as amorphous deposits formed by passive and rather unspecific structures of unfolded proteins aggregates. Subsequent studies demonstrated that IBs contained an important quantity of active protein. In this work, we proved that recombinant β-galactosidase inclusion bodies (IBβ-Gal) are functional aggregates. Moreover, they exhibit particular features distinct to the soluble version of the enzyme. The particulate enzyme was highly active against lactose in physiological and in acid pH and also retained its activity upon a pre-incubation at high temperature. IBβ-Gal washing or dilution induced the spontaneous release of active enzymes from the supramolecular aggregates. Along this process, we observed a continuous change in the values of several kinetic parameters, including specific activity and Michaelis-Menten constant, measured in the IBβ-Gal suspensions. Simultaneously, IBβ-Gal turned into a more heterogeneous population where smaller particles appeared. The released protein exhibited secondary structure features more similar to those of the soluble species than to the aggregated enzyme. Concluding, IBβ-Gal represents a reservoir and packed source of highly active and stable enzyme.
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Affiliation(s)
- Sandra S Flores
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Córdoba, Argentina; CONICET, Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT), Córdoba, Argentina
| | - Verónica Nolan
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Córdoba, Argentina; CONICET, Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT), Córdoba, Argentina
| | - María A Perillo
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Córdoba, Argentina; CONICET, Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT), Córdoba, Argentina
| | - Julieta M Sánchez
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Córdoba, Argentina; CONICET, Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT), Córdoba, Argentina.
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Chanalia P, Gandhi D, Attri P, Dhanda S. Purification and characterization of β-galactosidase from probiotic Pediococcus acidilactici and its use in milk lactose hydrolysis and galactooligosaccharide synthesis. Bioorg Chem 2018; 77:176-189. [DOI: 10.1016/j.bioorg.2018.01.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 12/26/2017] [Accepted: 01/02/2018] [Indexed: 10/18/2022]
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